WO2004099029A2 - Sprayer actuator, sprayer, and method of making the same - Google Patents

Sprayer actuator, sprayer, and method of making the same Download PDF

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Publication number
WO2004099029A2
WO2004099029A2 PCT/US2004/014047 US2004014047W WO2004099029A2 WO 2004099029 A2 WO2004099029 A2 WO 2004099029A2 US 2004014047 W US2004014047 W US 2004014047W WO 2004099029 A2 WO2004099029 A2 WO 2004099029A2
Authority
WO
WIPO (PCT)
Prior art keywords
sprayer
actuator
container
upper portion
ergonomic
Prior art date
Application number
PCT/US2004/014047
Other languages
French (fr)
Other versions
WO2004099029A3 (en
Inventor
Christopher Eugene Bates
Chow-Chi Huang
Stephen Henry Iding
Naomi Ruth Nelson
Ricky Ah-Man Woo
Original Assignee
The Procter & Gamble Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33416092&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2004099029(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by The Procter & Gamble Company filed Critical The Procter & Gamble Company
Priority to JP2005518172A priority Critical patent/JP4431115B2/en
Priority to CA2523249A priority patent/CA2523249C/en
Priority to EP04751439A priority patent/EP1620328B1/en
Priority to MXPA05011925A priority patent/MXPA05011925A/en
Priority to DE602004007372T priority patent/DE602004007372T2/en
Publication of WO2004099029A2 publication Critical patent/WO2004099029A2/en
Publication of WO2004099029A3 publication Critical patent/WO2004099029A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/16—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means
    • B65D83/20—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps
    • B65D83/201—Lever-operated actuators
    • B65D83/202—Lever-operated actuators combined with a hand grip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1052—Actuation means
    • B05B11/1056—Actuation means comprising rotatable or articulated levers
    • B05B11/1057—Triggers, i.e. actuation means consisting of a single lever having one end rotating or pivoting around an axis or a hinge fixedly attached to the container, and another end directly actuated by the user
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1052—Actuation means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents

Definitions

  • the present invention relates to a sprayer, a sprayer actuator, and a method of making the same.
  • Pressurized containers of the aerosol type have been traditionally equipped with an actuating button or cap, which button or cap defines a product duct through which the product passes to the discharge orifice situated within the button or cap.
  • the user grasps the container and with one finger of the grasping hand depresses the button or a portion of the cap to release the contents of the container.
  • the present invention relates to a sprayer, a sprayer actuator, and a method of making the same.
  • sprayer a sprayer actuator
  • method of making the same There are numerous embodiments of the sprayer, sprayer actuator, and method described herein, all of which are intended to be non-limiting examples, and there are numerous aspects thereof that may constitute inventions in their own right.
  • an ergonomic sprayer actuator comprises a housing having an upper portion, a lower portion for fitting on or over a can or other container, and a narrowed waist portion between said upper portion and said lower portion.
  • Fig. 1 is a perspective view of one non-limiting embodiment of a container having a sprayer actuator thereon.
  • Fig. 2 is a side view of the spray container shown in Fig. 1.
  • Fig. 3 is front view of the spray container shown in Fig. 1.
  • Fig. 4 is a cross-sectional view of the spray container taken along line 4-4 of Fig. 3.
  • Fig. 5 is a side view of the spray container showing a user's hand holding the same.
  • Fig. 6 is a view of the sprayer container from above showing a user's hand holding the same.
  • Fig. 7 is an exploded perspective view showing the assembly of the components of the sprayer actuator.
  • Fig. 8 is a perspective view of another embodiment of a sprayer which has a trigger disposed outside at least a portion of the actuator housing.
  • Fig. 1 shows one non-limiting embodiment of a sprayer 20.
  • the sprayer (or “spray container”) 20 comprises a container 22 and a sprayer actuator (or “actuator”) 24.
  • the sprayer actuator 24 comprises a housing 26, a trigger 28, and a nozzle 30.
  • the sprayer 20 can be a pressurized container sprayer, such as an aerosol sprayer, or a non-aerosol trigger sprayer, or any other suitable type of sprayer which can benefit from the features described herein.
  • the container 22 can be any suitable type of container for holding a product to be dispensed by the sprayer.
  • the container 22 it is desirable for the container 22 to be capable of holding contents that are under pressure and/or a propellant.
  • the design of such containers in the form of metal cans is well known.
  • the container 22 can be of any suitable shape.
  • the container 22 has a base 32, sides 34, a lower portion 36, an upper portion 38, and a top 40 (shown in Fig. 4).
  • the container 22 is generally cylindrical, but the sides 34 of the container taper inwardly with a slightly convex curvature on the upper portion 38 of the container.
  • the container 22 is, thus, narrower at its upper portion 38.
  • the container 22 can have numerous other shapes in different embodiments.
  • the container 22 can contain any suitable product that is capable of being sprayed by the sprayer 20.
  • the product can be in any suitable form, including liquids, and other compositions.
  • Examples of products include, but are not limited to: air freshening compositions, fabric freshening compositions, ironing aids such as spray starches, insecticides, paints, and other industrial, commercial, household, automotive, and/or garden compositions.
  • the container 22 can also include a propellant for dispensing the product therein.
  • a propellant for dispensing the product therein.
  • Any suitable propellant can be used.
  • Suitable propellants include, but are not limited to: hydrocarbon propellants such as: isobutene, butane, isopropane, dimethyl ether (DME), or non- hydrocarbon propellants such as compressed gases which include, but are not limited to compressed air, nitrogen, inert gases, carbon dioxide, and mixtures thereof.
  • compressed gases include, but are not limited to compressed air, nitrogen, inert gases, carbon dioxide, and mixtures thereof.
  • the actuator housing 26 in the embodiment shown has a lower portion 42, an upper portion 44, a waist portion 46, and a top 48.
  • the lower portion 42 fits on or over the container 22.
  • the waist portion 46 is located between the lower portion 42 and the upper portion 44.
  • the waist portion 46 is narrower than the widest portions of the upper and lower portions.
  • the waist portion 46 provides the sprayer actuator 24 with an ergonomic design.
  • actuator housing 26 is configured so that a user can wrap at least their thumb 50 and forefinger 52 around the narrowed waist portion 46.
  • the sprayer actuator housing 26 is also provided with a configuration that permits it to comfortably fit the natural contour of the user's palm, such as in the crease in the user's palm. As shown in Fig. 6, when viewed from above, at least a part of the upper portion 44 extends outward beyond the portion of the user's thumb 50 and forefinger 52 that are in contact with the narrowed waist portion 46 to form a ledge. The narrowness of the waist portion 46 makes the sprayer 20 easier to grip.
  • the upper portion 44 comprises at least portions that are wider when viewed from above than the portion of the user's hand that at least partially encircles the waist portion 46, the ledge formed by these portions of the upper portion 44 can rest on a portion of the user's thumb and forefinger to at least partially support the weight of the sprayer 20 during use. This can relieve the pressure on the user's fingers and/or wrist, particularly when the sprayer 20 is used for a prolonged period.
  • the upper portion 44 may comprise portions at the front, sides, and rear of the sprayer that are wider than the portions of the user's hand that are in contact with the narrowed waist portion 46. In other embodiments, the upper portion 44 need not have portions that are wider all the way around the sprayer than the portions of the user's hand that are in contact with the narrowed waist portion 46. Any suitable portion(s) of the upper portion 44 may extend laterally outward beyond the portions of the user's hand that are in contact with the narrowed waist portion 46. Such suitable portions include, but are not limited to on at least one of the sides, preferably both sides, and/or in the back of the sprayer.
  • the lower portion 42 of the actuator housing 26 is larger and extends downward further toward the base 32 of the container 22 in the back of the sprayer 20 than in the front of the sprayer.
  • the lower portion 42 of the actuator housing 26 may have a different configuration.
  • all parts of the lower portion 42 of the actuator housing 26 can be of uniform length.
  • the upper portion 44 of the actuator housing 26 has a front, a back, and an underside 49.
  • both the underside 49 and the top 48 of the actuator housing 26 are angled or tilted upward from the back of the sprayer to the front of the sprayer.
  • the fact that the underside 49 of the upper portion 44 is tilted so that the underside of said upper portion is higher in front than in the back allows the sprayer to be held more comfortably by a user without bending the user's wrist.
  • the top 48 (and/or the underside 49) of the housing can have a different configuration (e.g., flat, tilted downward, etc.). In some embodiments, it may even be possible to eliminate the top 48 of the housing 26 altogether.
  • the top 48 of the actuator housing 26 is tilted upward because the sprayer nozzle 30 is oriented so that liquid sprayed from the nozzle 30 will be directed at an angle of greater than 0° and less than 90°. That is, the liquid is not sprayed out parallel to the base 32 (that is, horizontally when the base is placed on a horizontal surface), nor is it sprayed out vertically (straight upward in the direction of the axis of the container).
  • the liquid sprayed from the nozzle 30 is directed at an angle of greater than or equal to about 30° and less than or equal to about 60°.
  • the liquid sprayed from the nozzle 30 is directed at an angle of about 45°.
  • the liquid sprayed from the nozzle 30 is directed at an angle of between about 20° - 25°'
  • the liquid sprayed from the nozzle 30 may be sprayed horizontally (0°) or vertically (90°). In still other embodiments, such as in the case of an ironing aid, it may be desirable for the liquid sprayed from the nozzle 30 to be directed downward toward a surface (at an angle of between 0° and -90°).
  • spray patterns are typically in the form of dispersions, and the spray emitted from a nozzle will form a dispersed spray pattern angle when viewed from the side.
  • the angles of spray referred to herein are the central axis, A, as shown in Fig. 2, that bisects such a spray pattern. It is understood that portions of the spray pattern will typically be distributed on either side of this central axis.
  • the nozzle 30 may be configured to spray droplets of any suitable size.
  • the nozzle 30 is configured to spray a plurality of droplets wherein at least some of the spray droplets have a diameter in a range of from about 0.01 ⁇ m to about 500 ⁇ m, or from about 5 ⁇ m to about 400 ⁇ m, or from about 10 ⁇ m to about 200 ⁇ m.
  • the mean particle size of the spray droplets may be in the range of from about 10 ⁇ m to about 100 ⁇ m, or from about 20 ⁇ m to about 60 ⁇ m. These size droplets may be useful in the case of air freshening compositions in which it is desired to suspend the droplets in the air for prolonged periods.
  • the sprayer actuator 24 comprises a trigger 28 operatively associated with the actuator housing 26 at the front of said sprayer.
  • the trigger 28 is also ergonomically designed.
  • the trigger 28 is ergonomic in that it is relatively long, flat, and wide. This permits the user to not only activate the trigger with one finger, such as the user's index finger; it also allows the user to use two or more fingers (such as their index and middle fingers) to activate the trigger 28. This reduces fatigue on the user's index finger in the case of prolonged spraying.
  • the trigger 28 can have any suitable dimensions. In certain embodiments, the trigger can have a length, L, of greater than or equal to about 1.25 inches (about 30 or 32 mm).
  • the trigger 28 can have a width, W, of greater than or equal to about 7/16 inch (about 10 or 11 mm).
  • the trigger 28 may have a width of about 10/16 inch (about 15 or 16 mm).
  • the trigger 28 need not be ergonomically designed, and can be of a more conventional design and size.
  • Figs. 4 and 7 show the details of the inside of the sprayer actuator 24.
  • the sprayer actuator 24 comprises the actuator housing 26 and trigger 28 described above.
  • the actuator housing 26 has a hole or opening 54 in the front for the trigger 28.
  • the trigger 28 is part of a larger trigger piece 56, and the rear of the trigger piece 56 has a bar 58 joined thereto, or integrally formed therewith.
  • the trigger piece 56 also comprises a bearing portion 60.
  • the bar 58 is configured to fit into recesses or slots 62 in shelves 64 that are located on the inside of the actuator housing 26, at the rear portion thereof. This allows the trigger piece 56 to rotate in a hinged fashion.
  • the trigger 28, thus, extends from the front of the sprayer 20, and is operatively associated with the actuator housing 26.
  • the container 22, as shown in Fig. 4, can have a conventional valve stem 66 extending upward from the top 40 of the container.
  • the sprayer actuator 24 further comprises a conduit 68.
  • the conduit 68 has a first end and a second end.
  • the conduit 68 comprises several elements. These include: the nozzle 30 at the first end (or front) of the conduit 68; a first upstanding conduit portion (or “segment” or “leg") 70; a second angular conduit portion (or “segment” or “leg”) 72; a platform 74; and a cap portion 76 at the second end of the conduit 68.
  • the second conduit portion forms an angle, ⁇ , with said first segment 72 greater than 0°.
  • the sprayer is configured to direct the spray in at an upward angle
  • this angle ⁇ is greater than about 90° and less than about 180°
  • the nozzle 30 is held in a fixed location in the front of the actuator housing 26, and the cap portion 76 of the conduit 68 is fit over the valve stem 66 of the container 22.
  • the first conduit portion 70 of the conduit 68 in this embodiment is more rigid than the second conduit portion 72 (the latter is preferably flexible).
  • the conduit 68 serves the dual purpose of channeling the contents of the container 22 to the nozzle 30 where they can be sprayed out of the container 22, and also transmitting a downward force on the valve stem 66 to release the contents of the container 22.
  • the sprayer actuator 24 works in the following manner.
  • the user pulls the trigger 28 inward toward the actuator housing 26 this causes the bearing portion 60 of the trigger piece 56 to press down on the platform 74 on the conduit 68.
  • the valve stem 66 permits the contents of the container 22 to be released. The contents of the container flow through the conduit 68 and out the nozzle 30.
  • the narrowed waist region can be formed by all, or a portion of, the container 22, rather than being formed entirely as part of the actuator housing 26.
  • the actuator 24 can be permanently affixed to the container 22, or the actuator 24 can be removably affixed to the container 22.
  • the actuator 24 can be removably affixed to the container 22 in any manner known in the art for removably affixing an article to a container, including but not limited to by screw threads, bayonet fitments, and by a snap fit.
  • the actuator 24 and container 22 can be configured so that their outside surfaces are flush or form a substantially continuous surface.
  • the conduit 68 need not comprise all of the elements described herein, and these elements can be provided as part of some other element of the sprayer actuator 24.
  • the nozzle need not remain in a fixed position at the front of the actuator housing 26.
  • the conduit 68 need not comprise a first and second conduit portion in which one of the conduit portions is flexible and one is more rigid.
  • the entire conduit 68 can be flexible, or the entire conduit can be rigid. However, this may change the way that the sprayer actuator functions.
  • the trigger piece 56 can comprise a portion of the actuator housing 26, or any other part of the actuator, rather than a separate component that is affixed to the actuator housing 26.
  • a sprayer actuator need not comprise all of the features of the sprayer described herein.
  • Fig. 8 shows an example of a conventional sprayer 20 that has an actuating member, such as a push button 80 at the top of the actuator housing 26.
  • This push button 80 is formed as part of the actuator housing 26, and is joined to the actuator housing 26 in a manner (such as with a living hinge that flexes) that permits the push button to move slightly downward and back upward.
  • a sprayer 20 shown in Fig.
  • a trigger piece 56 is joined to the front of the push button piece 80 to convert the sprayer into a trigger sprayer.
  • the trigger 28 resides outside of the front portion of the actuator housing 26.
  • the trigger piece 56 can be joined to the push button piece in any suitable manner, or it can be molded as an integral part of the push button piece 80 and/or the actuator housing 26.
  • the trigger piece 56 and the conduit 68 can be formed as a single integral component.
  • Fig. 7 shows one embodiment of a method for assembling of the components of the sprayer actuator 24.
  • the sprayer actuator 24 is assembled as follows.
  • the actuator housing 26 is provided in two portions comprising a side portion having a top that is at least partially open, a bottom that is at least partially open, and a front with an opening therein for the trigger, and a cap 48 for the actuator housing.
  • the trigger piece 56 is inserted into said side portion of the actuator housing so that at least a portion of the trigger piece 56 extends outward through the opening in the front of the side portion of the housing to form a trigger 28.
  • the conduit 68 is inserted into the side portion of the actuator housing 26 so that it is in fluid communication with the container 22 and operatively associated with the trigger 28.
  • the cap forming the top 48 of the actuator housing 26 is placed on top of the side portion of the housing to form the sprayer actuator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Catching Or Destruction (AREA)
  • Nozzles (AREA)

Abstract

A sprayer actuator, a sprayer, and a method of making the same are disclosed. In one embodiment, the sprayer (20) includes an ergonomic sprayer actuator (24) with a housing (26) having an upper portion (44), a lower portion (42) for fitting over a can (22), and a narrowed waist (46) portion between the upper portion and the lower portion.

Description

SPRAYER ACTUATOR, SPRAYER, AND
METHOD OF MAKING THE SAME
FIELD OF THE INVENTION
The present invention relates to a sprayer, a sprayer actuator, and a method of making the same.
BACKGROUND OF THE INVENTION
Pressurized containers of the aerosol type have been traditionally equipped with an actuating button or cap, which button or cap defines a product duct through which the product passes to the discharge orifice situated within the button or cap. To discharge product from the container, the user grasps the container and with one finger of the grasping hand depresses the button or a portion of the cap to release the contents of the container.
While achieving substantial commercial success, finger actuated buttons or caps have the disadvantage of inducing finger fatigue for some users. Moreover, with the prior systems of actuation, the aiming of the discharged product to the desired surface area suffers somewhat due to the relatively awkward gripping and finger placement. A more natural grasping and actuation of the container is achieved tlirough the use of a trigger mechanism. Examples of prior trigger actuated aerosol containers are disclosed in U.S. Pat. Nos. 3,189,232, 3,580,432; 3,987,942; 5,862,960; and 6,494,349 Bl. In addition, some prior spray containers are only held by a few of the user's fingers. These may result in a less than adequately secure grip, and supporting the weight of the sprayer may place an undue strain on the user's fingers. Therefore, the search for improved sprayers has continued.
SUMMARY OF THE INVENTION
The present invention relates to a sprayer, a sprayer actuator, and a method of making the same. There are numerous embodiments of the sprayer, sprayer actuator, and method described herein, all of which are intended to be non-limiting examples, and there are numerous aspects thereof that may constitute inventions in their own right.
In one embodiment, an ergonomic sprayer actuator is disclosed. The sprayer actuator comprises a housing having an upper portion, a lower portion for fitting on or over a can or other container, and a narrowed waist portion between said upper portion and said lower portion.
BRIEF DESCRIPTION OF THE DRAWINGS
While the specification concludes with claims particularly pointing out and distinctly claiming the invention, it is believed that the present invention will be better understood from the following description taken in conjunction with the accompanying drawings in which:
Fig. 1 is a perspective view of one non-limiting embodiment of a container having a sprayer actuator thereon.
Fig. 2 is a side view of the spray container shown in Fig. 1.
Fig. 3 is front view of the spray container shown in Fig. 1.
Fig. 4 is a cross-sectional view of the spray container taken along line 4-4 of Fig. 3.
Fig. 5 is a side view of the spray container showing a user's hand holding the same.
Fig. 6 is a view of the sprayer container from above showing a user's hand holding the same.
Fig. 7 is an exploded perspective view showing the assembly of the components of the sprayer actuator.
Fig. 8 is a perspective view of another embodiment of a sprayer which has a trigger disposed outside at least a portion of the actuator housing.
DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to a sprayer, a sprayer actuator, and a method of making the same. Fig. 1 shows one non-limiting embodiment of a sprayer 20. As shown in Fig. 1, the sprayer (or "spray container") 20 comprises a container 22 and a sprayer actuator (or "actuator") 24. The sprayer actuator 24 comprises a housing 26, a trigger 28, and a nozzle 30. The sprayer 20 can be a pressurized container sprayer, such as an aerosol sprayer, or a non-aerosol trigger sprayer, or any other suitable type of sprayer which can benefit from the features described herein. The container 22 can be any suitable type of container for holding a product to be dispensed by the sprayer. In some embodiments, it is desirable for the container 22 to be capable of holding contents that are under pressure and/or a propellant. The design of such containers in the form of metal cans is well known. The container 22 can be of any suitable shape. The container 22 has a base 32, sides 34, a lower portion 36, an upper portion 38, and a top 40 (shown in Fig. 4). In the embodiment shown, the container 22 is generally cylindrical, but the sides 34 of the container taper inwardly with a slightly convex curvature on the upper portion 38 of the container. The container 22 is, thus, narrower at its upper portion 38. The container 22 can have numerous other shapes in different embodiments.
The container 22 can contain any suitable product that is capable of being sprayed by the sprayer 20. The product can be in any suitable form, including liquids, and other compositions. Examples of products include, but are not limited to: air freshening compositions, fabric freshening compositions, ironing aids such as spray starches, insecticides, paints, and other industrial, commercial, household, automotive, and/or garden compositions.
The container 22 can also include a propellant for dispensing the product therein. Any suitable propellant can be used. Suitable propellants include, but are not limited to: hydrocarbon propellants such as: isobutene, butane, isopropane, dimethyl ether (DME), or non- hydrocarbon propellants such as compressed gases which include, but are not limited to compressed air, nitrogen, inert gases, carbon dioxide, and mixtures thereof. In certain embodiments, such as in the case of air freshening compositions, it may be desirable for the propellant to be substantially free of hydrocarbon propellants.
The actuator housing 26 in the embodiment shown, has a lower portion 42, an upper portion 44, a waist portion 46, and a top 48. The lower portion 42 fits on or over the container 22. As shown in Fig. 1, in this embodiment, the waist portion 46 is located between the lower portion 42 and the upper portion 44. The waist portion 46 is narrower than the widest portions of the upper and lower portions. The waist portion 46 provides the sprayer actuator 24 with an ergonomic design. Specifically, as shown in Fig. 5, in this embodiment, actuator housing 26 is configured so that a user can wrap at least their thumb 50 and forefinger 52 around the narrowed waist portion 46. In this embodiment, the sprayer actuator housing 26 is also provided with a configuration that permits it to comfortably fit the natural contour of the user's palm, such as in the crease in the user's palm. As shown in Fig. 6, when viewed from above, at least a part of the upper portion 44 extends outward beyond the portion of the user's thumb 50 and forefinger 52 that are in contact with the narrowed waist portion 46 to form a ledge. The narrowness of the waist portion 46 makes the sprayer 20 easier to grip. In addition, since the upper portion 44 comprises at least portions that are wider when viewed from above than the portion of the user's hand that at least partially encircles the waist portion 46, the ledge formed by these portions of the upper portion 44 can rest on a portion of the user's thumb and forefinger to at least partially support the weight of the sprayer 20 during use. This can relieve the pressure on the user's fingers and/or wrist, particularly when the sprayer 20 is used for a prolonged period.
The upper portion 44 may comprise portions at the front, sides, and rear of the sprayer that are wider than the portions of the user's hand that are in contact with the narrowed waist portion 46. In other embodiments, the upper portion 44 need not have portions that are wider all the way around the sprayer than the portions of the user's hand that are in contact with the narrowed waist portion 46. Any suitable portion(s) of the upper portion 44 may extend laterally outward beyond the portions of the user's hand that are in contact with the narrowed waist portion 46. Such suitable portions include, but are not limited to on at least one of the sides, preferably both sides, and/or in the back of the sprayer.
In the embodiment shown in the drawings, the lower portion 42 of the actuator housing 26 is larger and extends downward further toward the base 32 of the container 22 in the back of the sprayer 20 than in the front of the sprayer. In other embodiments, the lower portion 42 of the actuator housing 26 may have a different configuration. For example, in other embodiments, all parts of the lower portion 42 of the actuator housing 26 can be of uniform length.
As shown in the drawings, in this embodiment, the upper portion 44 of the actuator housing 26 has a front, a back, and an underside 49. In the embodiment shown, both the underside 49 and the top 48 of the actuator housing 26 are angled or tilted upward from the back of the sprayer to the front of the sprayer. The fact that the underside 49 of the upper portion 44 is tilted so that the underside of said upper portion is higher in front than in the back allows the sprayer to be held more comfortably by a user without bending the user's wrist. In other embodiments, the top 48 (and/or the underside 49) of the housing can have a different configuration (e.g., flat, tilted downward, etc.). In some embodiments, it may even be possible to eliminate the top 48 of the housing 26 altogether.
In the embodiment shown in the drawings, the top 48 of the actuator housing 26 is tilted upward because the sprayer nozzle 30 is oriented so that liquid sprayed from the nozzle 30 will be directed at an angle of greater than 0° and less than 90°. That is, the liquid is not sprayed out parallel to the base 32 (that is, horizontally when the base is placed on a horizontal surface), nor is it sprayed out vertically (straight upward in the direction of the axis of the container). In other embodiments, the liquid sprayed from the nozzle 30 is directed at an angle of greater than or equal to about 30° and less than or equal to about 60°. In other embodiments, the liquid sprayed from the nozzle 30 is directed at an angle of about 45°. In other embodiments, the liquid sprayed from the nozzle 30 is directed at an angle of between about 20° - 25°'
In other embodiments, however, it may be desirable for the liquid sprayed from the nozzle 30 to be sprayed horizontally (0°) or vertically (90°). In still other embodiments, such as in the case of an ironing aid, it may be desirable for the liquid sprayed from the nozzle 30 to be directed downward toward a surface (at an angle of between 0° and -90°). It is appreciated, however, that spray patterns are typically in the form of dispersions, and the spray emitted from a nozzle will form a dispersed spray pattern angle when viewed from the side. The angles of spray referred to herein are the central axis, A, as shown in Fig. 2, that bisects such a spray pattern. It is understood that portions of the spray pattern will typically be distributed on either side of this central axis.
The nozzle 30 may be configured to spray droplets of any suitable size. In one non- limiting embodiment, the nozzle 30 is configured to spray a plurality of droplets wherein at least some of the spray droplets have a diameter in a range of from about 0.01 μm to about 500 μm, or from about 5 μm to about 400 μm, or from about 10 μm to about 200 μm. The mean particle size of the spray droplets may be in the range of from about 10 μm to about 100 μm, or from about 20 μm to about 60 μm. These size droplets may be useful in the case of air freshening compositions in which it is desired to suspend the droplets in the air for prolonged periods.
The sprayer actuator 24 comprises a trigger 28 operatively associated with the actuator housing 26 at the front of said sprayer. In the embodiment shown, the trigger 28 is also ergonomically designed. The trigger 28 is ergonomic in that it is relatively long, flat, and wide. This permits the user to not only activate the trigger with one finger, such as the user's index finger; it also allows the user to use two or more fingers (such as their index and middle fingers) to activate the trigger 28. This reduces fatigue on the user's index finger in the case of prolonged spraying. The trigger 28 can have any suitable dimensions. In certain embodiments, the trigger can have a length, L, of greater than or equal to about 1.25 inches (about 30 or 32 mm). In certain embodiments, the trigger 28 can have a width, W, of greater than or equal to about 7/16 inch (about 10 or 11 mm). For example, the trigger 28 may have a width of about 10/16 inch (about 15 or 16 mm). In other embodiments, the trigger 28 need not be ergonomically designed, and can be of a more conventional design and size.
Figs. 4 and 7 show the details of the inside of the sprayer actuator 24. As shown in Figs. 4 and 7, this embodiment of the sprayer 20, the sprayer actuator 24 comprises the actuator housing 26 and trigger 28 described above. The actuator housing 26 has a hole or opening 54 in the front for the trigger 28. The trigger 28 is part of a larger trigger piece 56, and the rear of the trigger piece 56 has a bar 58 joined thereto, or integrally formed therewith. The trigger piece 56 also comprises a bearing portion 60. The bar 58 is configured to fit into recesses or slots 62 in shelves 64 that are located on the inside of the actuator housing 26, at the rear portion thereof. This allows the trigger piece 56 to rotate in a hinged fashion. The trigger 28, thus, extends from the front of the sprayer 20, and is operatively associated with the actuator housing 26.
The container 22, as shown in Fig. 4, can have a conventional valve stem 66 extending upward from the top 40 of the container. The sprayer actuator 24 further comprises a conduit 68. The conduit 68 has a first end and a second end. The conduit 68, in the embodiment shown, comprises several elements. These include: the nozzle 30 at the first end (or front) of the conduit 68; a first upstanding conduit portion (or "segment" or "leg") 70; a second angular conduit portion (or "segment" or "leg") 72; a platform 74; and a cap portion 76 at the second end of the conduit 68. The second conduit portion forms an angle, α, with said first segment 72 greater than 0°. In the embodiment shown in Fig. 4 where the sprayer is configured to direct the spray in at an upward angle, this angle α is greater than about 90° and less than about 180° In the embodiment shown in the drawings, the nozzle 30 is held in a fixed location in the front of the actuator housing 26, and the cap portion 76 of the conduit 68 is fit over the valve stem 66 of the container 22. The first conduit portion 70 of the conduit 68 in this embodiment, is more rigid than the second conduit portion 72 (the latter is preferably flexible). In this embodiment, the conduit 68 serves the dual purpose of channeling the contents of the container 22 to the nozzle 30 where they can be sprayed out of the container 22, and also transmitting a downward force on the valve stem 66 to release the contents of the container 22.
The sprayer actuator 24 works in the following manner. When the user pulls the trigger 28 inward toward the actuator housing 26, this causes the bearing portion 60 of the trigger piece 56 to press down on the platform 74 on the conduit 68. This causes the first conduit portion 70 of the conduit 68 to move downward and activates the valve stem 66 of the container. Since the nozzle 30 is in a fixed position, the flexible nature of the second conduit portion 72 of the conduit 68 bends and permits this downward movement to take place. The valve stem 66 permits the contents of the container 22 to be released. The contents of the container flow through the conduit 68 and out the nozzle 30.
Numerous other embodiments having the features described herein are possible, a few of which are described below. In other embodiments, for example, the narrowed waist region can be formed by all, or a portion of, the container 22, rather than being formed entirely as part of the actuator housing 26. In various embodiments, the actuator 24 can be permanently affixed to the container 22, or the actuator 24 can be removably affixed to the container 22. The actuator 24 can be removably affixed to the container 22 in any manner known in the art for removably affixing an article to a container, including but not limited to by screw threads, bayonet fitments, and by a snap fit. In addition, rather than having the lower portion 42 of the actuator housing 26 overlap the outside of the upper portion 38 of the container, the actuator 24 and container 22 can be configured so that their outside surfaces are flush or form a substantially continuous surface.
In these or other embodiments, the conduit 68 need not comprise all of the elements described herein, and these elements can be provided as part of some other element of the sprayer actuator 24. In other embodiments, the nozzle need not remain in a fixed position at the front of the actuator housing 26. For example, it is possible for the nozzle 30 to be mounted so that it moves upward and downward when the trigger 28 is moved. In other embodiments, the conduit 68 need not comprise a first and second conduit portion in which one of the conduit portions is flexible and one is more rigid. In other embodiments, for example, the entire conduit 68 can be flexible, or the entire conduit can be rigid. However, this may change the way that the sprayer actuator functions.
In other embodiments, the trigger piece 56 can comprise a portion of the actuator housing 26, or any other part of the actuator, rather than a separate component that is affixed to the actuator housing 26. Such a sprayer actuator need not comprise all of the features of the sprayer described herein. For example, Fig. 8 shows an example of a conventional sprayer 20 that has an actuating member, such as a push button 80 at the top of the actuator housing 26. This push button 80 is formed as part of the actuator housing 26, and is joined to the actuator housing 26 in a manner (such as with a living hinge that flexes) that permits the push button to move slightly downward and back upward. In the variation of the sprayer 20 shown in Fig. 8, a trigger piece 56 is joined to the front of the push button piece 80 to convert the sprayer into a trigger sprayer. In this embodiment, the trigger 28 resides outside of the front portion of the actuator housing 26. The trigger piece 56 can be joined to the push button piece in any suitable manner, or it can be molded as an integral part of the push button piece 80 and/or the actuator housing 26. In still other embodiments, the trigger piece 56 and the conduit 68 can be formed as a single integral component.
Fig. 7 shows one embodiment of a method for assembling of the components of the sprayer actuator 24. As shown in Fig. 7, the sprayer actuator 24 is assembled as follows. The actuator housing 26 is provided in two portions comprising a side portion having a top that is at least partially open, a bottom that is at least partially open, and a front with an opening therein for the trigger, and a cap 48 for the actuator housing. The trigger piece 56 is inserted into said side portion of the actuator housing so that at least a portion of the trigger piece 56 extends outward through the opening in the front of the side portion of the housing to form a trigger 28. The conduit 68 is inserted into the side portion of the actuator housing 26 so that it is in fluid communication with the container 22 and operatively associated with the trigger 28. Finally, the cap forming the top 48 of the actuator housing 26 is placed on top of the side portion of the housing to form the sprayer actuator.
The disclosure of all patents, patent applications (and any patents which issue thereon, as well as any corresponding published foreign patent applications), and publications mentioned throughout this description are hereby incorporated by reference herein. It is expressly not admitted, however, that any of the documents incorporated by reference herein teach or disclose the present invention.
It should be understood that every maximum numerical limitation given throughout this specification will include every lower numerical limitation, as if such lower numerical limitations were expressly written herein. Every minimum numerical limitation given throughout this specification will include every higher numerical limitation, as if such higher numerical limitations were expressly written herein. Every numerical range given throughout this specification will include every narrower numerical range that falls within such broader numerical range, as if such narrower numerical ranges were all expressly written herein.
While particular embodiments of the subject invention have been described, it will be obvious to those skilled in the art that various changes and modifications of the subject invention can be made without departing from the spirit and scope of the invention. In addition, while the present invention has been described in connection with certain specific embodiments thereof, it is to be understood that this is by way of illustration and not by way of limitation and the scope of the invention is defined by the appended claims which should be construed as broadly as the prior art will permit.

Claims

What is claimed is:
1. An ergonomic sprayer actuator comprising a housing having an upper portion, a lower portion for fitting on a container, and a narrowed waist portion between said upper portion and said lower portion.
2. The ergonomic sprayer actuator of Claim 1 wherein said actuator housing is configured so that a user can wrap at least their thumb and forefinger around the narrowed waist portion, and when viewed from above, at least a part of the upper portion extends outward beyond the portion of the user's thumb and forefinger that are in contact with the narrowed waist portion.
3. The ergonomic sprayer actuator of Claims 1 or 2 wherein said upper portion is configured so that it rests on a portion of a user's thumb and forefinger to at least partially support the weight of the sprayer during use.
4. The ergonomic sprayer actuator of Claims 1-3 wherein said upper portion has a front, a back, and an underside, and said upper portion is tilted so that the underside of said upper portion is higher in front than in the back.
5. The ergonomic sprayer actuator of Claims 1-4 further comprising a nozzle at the front of said sprayer housing, wherein said nozzle is oriented so that liquid sprayed from said nozzle will be directed at an angle of greater than 0° and less than 90°.
6. The ergonomic sprayer actuator of Claims 1-5 further comprising a trigger operatively associated with said sprayer housing at the front of said sprayer.
7. The sprayer of Claims 1-6 which is configured to provide a spray in the air in the form of a plurality of spray droplets, and at least some of the spray droplets have a diameter in a range of from 0.01 μm to 500 μm.
8. The sprayer of Claims 1-7 wherein at least some of the spray droplets have a mean diameter by volume of between 10-100 μm.
9. A sprayer comprising a non-pressurized container having a top and the ergonomic sprayer actuator of Claims 1-8 which is joined to the top of the container.
10. A sprayer comprising a pressurized container having a top and the ergonomic sprayer actuator of Claims 1-8 which is joined to the top of the container.
PCT/US2004/014047 2003-05-05 2004-05-05 Sprayer actuator, sprayer, and method of making the same WO2004099029A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2005518172A JP4431115B2 (en) 2003-05-05 2004-05-05 Aerosol sprayer
CA2523249A CA2523249C (en) 2003-05-05 2004-05-05 Sprayer actuator, sprayer, and method of making the same
EP04751439A EP1620328B1 (en) 2003-05-05 2004-05-05 Sprayer actuator
MXPA05011925A MXPA05011925A (en) 2003-05-05 2004-05-05 Sprayer actuator, sprayer, and method of making the same.
DE602004007372T DE602004007372T2 (en) 2003-05-05 2004-05-05 ACTUATING KNOB FOR A SPRAYER

Applications Claiming Priority (2)

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US10/429,629 2003-05-05
US10/429,629 US20040222246A1 (en) 2003-05-05 2003-05-05 Sprayer actuator, sprayer, and method of making the same

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WO2004099029A2 true WO2004099029A2 (en) 2004-11-18
WO2004099029A3 WO2004099029A3 (en) 2005-04-14

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EP (1) EP1620328B1 (en)
JP (1) JP4431115B2 (en)
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ES (1) ES2288262T3 (en)
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CA2523249C (en) 2012-01-03
US20040222246A1 (en) 2004-11-11
US20070062980A1 (en) 2007-03-22
ATE366215T1 (en) 2007-07-15
DE602004007372D1 (en) 2007-08-16
US7784650B2 (en) 2010-08-31
EP1620328A2 (en) 2006-02-01
JP4431115B2 (en) 2010-03-10
CN100564191C (en) 2009-12-02
ES2288262T3 (en) 2008-01-01
EP1620328B1 (en) 2007-07-04
CA2523249A1 (en) 2004-11-18
KR20050046786A (en) 2005-05-18
CN1784347A (en) 2006-06-07
JP2006511349A (en) 2006-04-06
DE602004007372T2 (en) 2008-02-28
WO2004099029A3 (en) 2005-04-14
MXPA05011925A (en) 2006-02-17
KR100775776B1 (en) 2007-11-12

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